Configuring Virtual Connections

Transcription

1 CHAPTER 6 This chapter describes how to configure virtual connections (VCs) in a typical ATM network after autoconfiguration has established the default network connections. The network configuration modifications described in this chapter are used to optimize your ATM network operation. This chapter provides advanced configuration instructions for the Catalyst 8540 MSR, Catalyst 8510 MSR, and LightStream 1010 ATM switch routers. For an overview of virtual connection types and applications, refer to the Guide to ATM Technology. For complete descriptions of the commands mentioned in this chapter, refer to the ATM Switch Router Reference publication. The tasks to configure virtual connections are described in the following sections: Characteristics and Types of Virtual Connections on page 6-2 Configuring Virtual Channel Connections on page 6-2 Configuring Terminating PVC Connections on page 6-7 Configuring PVP Connections on page 6-9 Configuring Point-to-Multipoint PVC Connections on page 6-13 Configuring Point-to-Multipoint PVP Connections on page 6-16 Configuring Soft PVC Connections on page 6-18 Configuring Soft PVP Connections on page 6-22 Configuring the Soft PVP or Soft PVC Route Optimization Feature on page 6-24 Configuring Soft PVCs with Explicit Paths on page 6-26 Configuring Soft PVCs with Explicit Paths on page 6-26 Configuring a VPI/VCI Range for SVPs and SVCs on page 6-30 Configuring VP Tunnels on page 6-33 Configuring Interface and Connection Snooping on page

2 Characteristics and Types of Virtual Connections Chapter 6 Characteristics and Types of Virtual Connections This section lists the various virtual connections (VC) types in Table 6-1. Table 6-1 Supported VC Types Connection Point-to- Point Point-to- Multipoint Transit Terminate Permanent virtual channel link (PVCL) x x Permanent virtual path link (PVPL) x x Permanent virtual channel (PVC) x x x x Permanent virtual path (PVP) x x x Soft permanent virtual channel (Soft PVC) x x Soft permanent virtual path (Soft PVP) x x Switched virtual channel (SVC) x x x x Switched virtual path (SVP) x x x Configuring Virtual Channel Connections This section describes configuring virtual channel connections (VCCs) on the ATM switch router. A VCC is established as a bidirectional facility to transfer ATM traffic between two ATM layer users. Figure 6-1 shows an example VCC between ATM user A and user D. An end-to-end VCC, as shown in Figure 6-1 between user A and user D, has two parts: Virtual channel links, labelled VCL. These are the interconnections between switches, either directly or through VP tunnels. Internal connections, shown by the dotted line in the switch. These connections are also sometimes called cross-connections or cross-connects. The common endpoint between an internal connection and a link occurs at the switch interface. The endpoint of the internal connection is also referred to as a connection leg or half-leg. A cross-connect connects two legs together. Figure 6-1 VCC Example User A VCL IF# = 0/0/0 Switch B Switch C User D VCL VCL VPI/VCI = 0/50 IF# = 3/0/1 VPI/VCI = 2/100 IF# = 3/0/2 VPI/VCI = 50/255 IF# = 0/0/1 VCC H6294 The value of the VPIs and VCIs can change as the traffic is relayed through the ATM network. 6-2

3 Chapter 6 Configuring Virtual Channel Connections To configure a point-to-point VCC, perform the following steps, beginning in global configuration mode: Step 1 Switch(config)# interface atm card/subcard/port Switch(config-if)# Step 2 Switch(config-if)# atm pvc vpi-a [vci-a any-vci 1 ][rx-cttr index][tx-cttr index] interface atm card/subcard/port[.vpt#] vpi-b [vci-b any-vci 1 ] 1. The any-vci parameter is only available for interface atm0. Selects the interface to be configured. Configures the PVC. The row index for rx-cttr and tx-cttr must be configured before using this optional parameter. See the Configuring the Connection Traffic Table section on page When configuring PVC connections, begin with lower VCI numbers. Using low VCI numbers allows more efficient use of the switch fabric resources. Examples The following example shows how to configure the internal cross-connect PVC on Switch B between interface ATM 3/0/1 (VPI = 0, VCI = 50) and interface ATM 3/0/2 (VPI = 2, VCI = 100) (see Figure 6-1): Switch-B(config)# interface atm 3/0/1 Switch-B(config-if)# atm pvc 0 50 interface atm 3/0/ The following example shows how to configure the internal cross-connect PVC on Switch C between interface ATM 0/0/0, VPI = 2, VCI = 100, and interface ATM 0/0/1, VPI 50, VCI = 255: Switch-C(config)# interface atm 0/0/0 Switch-C(config-if)# atm pvc interface atm 0/0/ Each subsequent VC cross-connection and link must be configured until the VC is terminated to create the entire VCC. The above examples show how to configure cross-connections using one command. This is the preferred method, but it is also possible to configure each leg separately, then connect them with the atm pvc vpi vci interface atm card/subcard/port vpi vci command. This alternative method requires more steps, but might be convenient if each leg has many additional configuration parameters or if you have configured individual legs with SNMP commands and you want to connect them with one CLI command. 6-3

4 Configuring Virtual Channel Connections Chapter 6 Displaying VCCs To show the VCC configuration, use the following EXEC commands: show atm interface [atm card/subcard/port] show atm vc [interface atm card/subcard/port vpi vci] Shows the ATM interface configuration. Shows the PVC interface configuration. The following examples differ depending on the feature card installed on the processor. Examples The following example shows the Switch B PVC configuration on ATM interface 3/0/1: Switch-B# show atm interface Interface: ATM3/0/1 Port-type: oc3suni IF Status: UP Admin Status: up Auto-config: enabled AutoCfgState: completed IF-Side: Network IF-type: NNI Uni-type: not applicable Uni-version: not applicable Max-VPI-bits: 8 Max-VCI-bits: 14 Max-VP: 255 Max-VC: ConfMaxSvpcVpi: 255 CurrMaxSvpcVpi: 255 ConfMaxSvccVpi: 255 CurrMaxSvccVpi: 255 ConfMinSvccVci: 35 CurrMinSvccVci: 35 Svc Upc Intent: pass Signalling: Enabled ATM Address for Soft VC: e0.4fac.b c Configured virtual links: PVCLs SoftVCLs SVCLs TVCLs PVPLs SoftVPLs SVPLs Total-Cfgd Inst-Conns Logical ports(vp-tunnels): 0 Input cells: Output cells: minute input rate: 0 bits/sec, 0 cells/sec 5 minute output rate: 0 bits/sec, 0 cells/sec Input AAL5 pkts: , Output AAL5 pkts: , AAL5 crc errors: 0 The following example shows the Switch B PVC configuration on ATM interface 3/0/1: Switch-B# show atm vc interface atm 3/0/1 Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status ATM3/0/1 0 5 PVC ATM QSAAL UP ATM3/0/ PVC ATM ILMI UP ATM3/0/ PVC ATM PNNI UP ATM3/0/ PVC ATM3/0/ UP ATM3/0/ PVC ATM SNAP UP 6-4

5 Chapter 6 Configuring Virtual Channel Connections The following example shows the Switch B PVC configuration on ATM interface 3/0/1, VPI = 0, VCI = 50, with the switch processor feature card installed: Switch-B# show atm vc interface atm 3/0/ Interface: ATM3/0/1, Type: oc3suni VPI = 0 VCI = 50 Status: UP Time-since-last-status-change: 4d02h Connection-type: PVC Cast-type: point-to-point Packet-discard-option: disabled Usage-Parameter-Control (UPC): pass Wrr weight: 32 Number of OAM-configured connections: 0 OAM-configuration: disabled OAM-states: Not-applicable Cross-connect-interface: ATM3/0/2, Type: oc3suni Cross-connect-VPI = 2 Cross-connect-VCI = 100 Cross-connect-UPC: pass Cross-connect OAM-configuration: disabled Cross-connect OAM-state: Not-applicable Threshold Group: 5, Cells queued: 0 Rx cells: 0, Tx cells: 0 Tx Clp0:0, Tx Clp1: 0 Rx Clp0:0, Rx Clp1: 0 Rx Upc Violations:0, Rx cell drops:0 Rx Clp0 q full drops:0, Rx Clp1 qthresh drops:0 Rx connection-traffic-table-index: 1 Rx service-category: UBR (Unspecified Bit Rate) Rx pcr-clp01: Rx scr-clp01: none Rx mcr-clp01: none Rx cdvt: 1024 (from default for interface) Rx mbs: none Tx connection-traffic-table-index: 1 Tx service-category: UBR (Unspecified Bit Rate) Tx pcr-clp01: Tx scr-clp01: none Tx mcr-clp01: none Tx cdvt: none Tx mbs: none 6-5

6 Configuring Virtual Channel Connections Chapter 6 Deleting VCCs from an Interface This section describes how to delete a VCC configured on an interface. To delete a VCC, perform the following steps, beginning in global configuration mode: Step 1 Switch(config)# interface atm card/subcard/port Selects the interface to be configured. Switch(config-if)# Step 2 Switch(config-if)# no atm pvc vpi vci Deletes the PVC. Example The following example shows how to delete the VCC on ATM interface 3/0/0, VPI = 20, VCI = 200: Switch(config-if)# interface atm 3/0/0 Switch(config-if)# no atm pvc Confirming VCC Deletion To confirm the deletion of a VCC from an interface, use the following EXEC command before and after deleting the VCC: show atm vc interface atm card/subcard/port [vpi vci] Shows the PVCs configured on the interface. Example The following example shows how to confirm that the VCC is deleted from the interface: Switch# show atm vc interface atm 3/0/0 Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status ATM3/0/0 0 5 PVC ATM2/0/ QSAAL UP ATM3/0/ PVC ATM2/0/ ILMI UP ATM3/0/ PVC ATM2/0/ PNNI UP ATM3/0/ PVC ATM2/0/ NCDP UP ATM3/0/ PVC ATM1/1/ DOWN Switch# configure terminal Switch(config)# interface atm 3/0/0 Switch(config-if)# no atm pvc Switch(config-if)# end Switch# show atm vc interface atm 3/0/0 Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status ATM3/0/0 0 5 PVC ATM2/0/ QSAAL UP ATM3/0/ PVC ATM2/0/ ILMI UP ATM3/0/ PVC ATM2/0/ PNNI UP ATM3/0/ PVC ATM2/0/ NCDP UP 6-6

7 Chapter 6 Configuring Terminating PVC Connections Configuring Terminating PVC Connections This section describes configuring point-to-point and point-to-multipoint terminating permanent virtual channel (PVC) connections. Terminating connections provide the connection to the ATM switch router s route processor for LAN emulation (LANE), IP over ATM, and control channels for Integrated Local Management Interface (ILMI), signalling, and Private Network-Network Interface (PNNI) plus network management. Figure 6-2 shows an example of transit and terminating connections. Figure 6-2 Terminating PVC Types Switch Switch fabric CPU UNI/NNI ATM network End system Point-to-point terminating connection Switch UNI/NNI CPU UNI/NNI ATM network UNI/NNI Switch fabric Point-to-multipoint connection Point-to-point and point-to-multipoint are two types of terminating connections. Both terminating connections are configured using the same commands as transit connections (discussed in the previous sections). However, all switch terminating connections use interface atm0 to connect to the route processor. Since release 12.0(1a)W5(5b) of the system software, addressing the interface on the processor (CPU) has changed. The ATM interface is now called atm0, and the Ethernet interface is now called ethernet0. The old formats (atm 2/0/0 and ethernet 2/0/0) are still supported. 6-7

8 Configuring Terminating PVC Connections Chapter 6 To configure both point-to-point and point-to-multipoint terminating PVC connections, perform the following steps, beginning in global configuration mode: Step 1 Switch(config)# interface atm card-a/subcard-a/port-a[.vpt#] Switch(config-if)# Step 2 Switch(config-if)# atm pvc vpi-a [vci-a any-vci 1 ][cast-type type] [rx-cttr index] [tx-cttr index] interface atm card-b/subcard-b/port-b[.vpt#] vpi-b [vci-b any-vci 1 ] [encap type] [cast-type type] 1. The any-vci feature is only available for interface atm 0. Selects the interface to be configured. Configures the PVC between ATM switch router connections. When configuring point-to-multipoint PVC connections using the atm pvc command, the root point is port A and the leaf points are port B. The row index for rx-cttr and tx-cttr must be configured before using this optional parameter. See the Configuring the Connection Traffic Table section on page Examples The following example shows how to configure the internal cross-connect PVC between interface ATM 3/0/1, VPI = 1, VCI = 50, and the terminating connection at the route processor interface ATM 0, VPI = 0, and VCI unspecified: Switch-B(config)# interface atm 3/0/1 Switch-B(config-if)# atm pvc 1 50 interface atm0 0 any-vci encap aal5snap The following example shows how to configure the route processor leg of any terminating PVC: Switch(config)# interface atm0 Switch(config-if)# atm pvc 0 any-vci When configuring the route processor leg of a PVC that is not a tunnel, the VPI should be configured as 0. The preferred method of VCI configuration is to select the any-vci parameter, unless a specific VCI is needed as a parameter in another command, such as map-list. If configuring a specific VCI value for the route processor leg, select a VCI value higher than 300 to prevent a conflict with an automatically assigned VCI for well-known channels if the ATM switch router reboots. 6-8

9 Chapter 6 Configuring PVP Connections Displaying the Terminating PVC Connections To display the terminating PVC configuration VCs on the interface, use the following EXEC command: show atm vc interface atm card/subcard/port vpi vci Shows the PVC configured on the interface. See the Displaying VCCs section on page 6-4 for examples of the show atm vc commands. Configuring PVP Connections This section describes configuring a permanent virtual path (PVP) connection. Figure 6-3 shows an example of PVPs configured through the ATM switch routers. Figure 6-3 Virtual Path Connection Example User A VPL IF# = 0/1/3 Switch B Switch C User D VPL VPL VPI = 30 IF# = 4/0/0 VPI = 45 IF# = 1/1/1 VPI = 50 IF# = 1/1/0 PVP To configure a PVP connection, perform the following steps, beginning in global configuration mode: Step 1 Step 2 Switch(config)# interface atm card/subcard/port Switch(config-if)# Switch(config-if)# atm pvp vpi-a [rx-cttr index] [tx-cttr index] interface atm card/subcard/port vpi-b Selects the physical interface to be configured. Configures the interface PVP. The row index for rx-cttr and tx-cttr must be configured before using this optional parameter. See the Configuring the Connection Traffic Table section on page When configuring PVP connections, begin with lower virtual path identifier (VPI) numbers. Using low VPI numbers allows more efficient use of the switch fabric resources. 6-9

10 Configuring PVP Connections Chapter 6 Examples The following example shows how to configure the internal cross-connect PVP within Switch B between interfaces 4/0/0, VPI = 30, and interface ATM 1/1/1, VPI = 45: Switch-B(config)# interface atm 4/0/0 Switch-B(config-if)# atm pvp 30 interface atm 1/1/1 45 The following example shows how to configure the internal cross-connect PVP within Switch C between interfaces 0/1/3, VPI = 45, and interface ATM 1/1/0, VPI = 50: Switch-C(config)# interface atm 0/1/3 LS1010(config-if)# atm pvp 45 interface atm 1/1/0 50 Each subsequent PVP cross connection and link must be configured until the VP is terminated to create the entire PVP. Displaying PVP Configuration To show the ATM interface configuration, use the following EXEC command: show atm vp [interface atm card/subcard/port vpi] Shows the ATM VP configuration. Example The following example shows the PVP configuration of Switch B: Switch-B# show atm vp Interface VPI Type X-Interface X-VPI Status ATM1/1/1 45 PVP ATM4/0/0 30 UP ATM4/0/0 30 PVP ATM1/1/1 45 UP 6-10

11 Chapter 6 Configuring PVP Connections The following example shows the PVP configuration of Switch B with the switch processor feature card installed: Switch-B# show atm vp interface atm 4/0/0 30 Interface: ATM4/0/0, Type: ds3suni VPI = 30 Status: UP Time-since-last-status-change: 00:09:02 Connection-type: PVP Cast-type: point-to-point Usage-Parameter-Control (UPC): pass Wrr weight: 2 Number of OAM-configured connections: 0 OAM-configuration: disabled OAM-states: Not-applicable Cross-connect-interface: ATM1/1/1, Type: oc3suni Cross-connect-VPI = 45 Cross-connect-UPC: pass Cross-connect OAM-configuration: disabled Cross-connect OAM-state: Not-applicable Threshold Group: 5, Cells queued: 0 Rx cells: 0, Tx cells: 0 Tx Clp0:0, Tx Clp1: 0 Rx Clp0:0, Rx Clp1: 0 Rx Upc Violations:0, Rx cell drops:0 Rx Clp0 q full drops:0, Rx Clp1 qthresh drops:0 Rx connection-traffic-table-index: 1 Rx service-category: UBR (Unspecified Bit Rate) Rx pcr-clp01: Rx scr-clp01: none Rx mcr-clp01: none Rx cdvt: 1024 (from default for interface) Rx mbs: none Tx connection-traffic-table-index: 1 Tx service-category: UBR (Unspecified Bit Rate) Tx pcr-clp01: Tx scr-clp01: none Tx mcr-clp01: none Tx cdvt: none Tx mbs: none 6-11

12 Configuring PVP Connections Chapter 6 Deleting PVPs from an Interface This section describes how to delete a PVP configured on an interface. To delete a PVP, perform the following steps, beginning in global configuration mode: Step 1 Switch(config)# interface atm card/subcard/port Selects the interface to be configured. Switch(config-if)# Step 2 Switch(config-if)# no atm pvp vpi Deletes the PVP. Example The following example shows how to delete the PVP on ATM interface 1/1/0, VPI = 200: Switch(config-if)# interface atm 1/1/0 Switch(config-if)# no atm pvp 200 Confirming PVP Deletion To confirm the deletion of a PVP from an interface, use the following EXEC command before and after deleting the PVP: show atm vp interface atm [card/subcard/port vpi] Shows the PVCs configured on the interface. Example The following example shows how to confirm that the PVP is deleted from the interface: Switch# show atm vp Interface VPI Type X-InterfaceX-VPI Status ATM1/1/0 113 PVP TUNNEL ATM1/1/0 200 PVP ATM1/1/1100 DOWN ATM1/1/1 1 PVP SHAPED TUNNEL ATM1/1/1 100 PVP ATM1/1/0200 DOWN Switch# configure terminal Switch(config)# interface atm 1/1/0 Switch(config-if)# no atm pvp 200 Switch(config-if)# end Switch# show atm vp Interface VPI Type X-InterfaceX-VPI Status ATM1/1/0 113 PVP TUNNEL ATM1/1/1 1 PVP SHAPED TUNNEL Switch# 6-12

13 Chapter 6 Configuring Point-to-Multipoint PVC Connections Configuring Point-to-Multipoint PVC Connections This section describes configuring point-to-multipoint PVC connections. In Figure 6-4, cells entering the ATM switch router at the root point (on the left side at interface ATM 0/0/0, VPI = 50, VCI = 100) are duplicated and switched to the leaf points (output interfaces) on the right side of the figure. Figure 6-4 Point-to-Multipoint PVC Example IF# = 0/0/0 VPI = 50, VCI = 100 IF# = 0/1/0 VPI = 60, VCI = 200 IF# = 0/1/1 VPI = 70, VCI = 210 ATM network Switch fabric IF# = 0/1/2 VPI = 80, VCI = 220 UNI or NNI H6297 If desired, one of the leaf points can terminate in the ATM switch router at the route processor interface ATM 0. To configure the point-to-multipoint PVC connections shown in Figure 6-4, perform the following steps, beginning in global configuration mode: Step 1 Step 2 Switch(config)# interface atm card/subcard/port[.vpt#] Switch(config-if)# Switch(config-if)#atm pvc vpi-a vci-a [cast-type type-a] [rx-cttr index] [tx-cttr index] interface atm card/subcard/port[.vpt#] vpi-b vci-b [cast-type type-b] Selects the interface to be configured. Configures the PVC between ATM switch router connections. To configure the point-to-multipoint PVC connections using the atm pvc command, the root point is port A and the leaf points are port B. The row index for rx-cttr and tx-cttr must be configured before using this optional parameter. See the Configuring the Connection Traffic Table section on page

14 Configuring Point-to-Multipoint PVC Connections Chapter 6 Examples The following example shows how to configure the root-point PVC on ATM switch router interface ATM 0/0/0, VPI = 50, VCI = 100, to the leaf-point interfaces (see Figure 6-4): Switch(config)# interface atm 0/0/0 Switch(config-if)# atm pvc cast-type p2mp-root interface atm 0/1/ cast-type p2mp-leaf Switch(config-if)# atm pvc cast-type p2mp-root interface atm 0/1/ cast-type p2mp-leaf Switch(config-if)# atm pvc cast-type p2mp-root interface atm 0/1/ cast-type p2mp-leaf Displaying Point-to-Multipoint PVC Configuration To display the point-to-multipoint PVC configuration, use the following EXEC mode command: show atm vc interface atm card/subcard/port Shows the PVCs configured on the interface. show atm vc interface atm card/subcard/port vpi vci Shows the PVCs configured on the interface. Examples The following example shows the PVC configuration of the point-to-multipoint connections on ATM interface 0/0/0: Switch# show atm vc interface atm 0/0/0 Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status ATM0/0/0 0 5 PVC ATM2/0/ QSAAL UP ATM0/0/ PVC ATM2/0/ ILMI UP ATM0/0/ PVC ATM2/0/ PNNI UP ATM0/0/ PVC ATM2/0/ NCDP UP ATM0/0/ PVC ATM0/1/ UP ATM0/1/ UP ATM0/1/ UP 6-14

15 Chapter 6 Configuring Point-to-Multipoint PVC Connections The following example shows the VC configuration on interface ATM 0/0/0, VPI = 50, VCI = 100, with the switch processor feature card installed: Switch# show atm vc interface atm 0/0/ Interface: ATM0/0/0, Type: oc3suni VPI = 50 VCI = 100 Status: UP Time-since-last-status-change: 00:07:06 Connection-type: PVC Cast-type: point-to-multipoint-root Packet-discard-option: disabled Usage-Parameter-Control (UPC): pass Wrr weight: 32 Number of OAM-configured connections: 0 OAM-configuration: disabled OAM-states: Not-applicable Cross-connect-interface: ATM0/1/0, Type: oc3suni Cross-connect-VPI = 60 Cross-connect-VCI = 200 Cross-connect-UPC: pass Cross-connect OAM-configuration: disabled Cross-connect OAM-state: Not-applicable Cross-connect-interface: ATM0/1/1 Cross-connect-VPI = 70 Cross-connect-VCI = 210 Cross-connect-interface: ATM0/1/2 Cross-connect-VPI = 80 Cross-connect-VCI = 220 Threshold Group: 5, Cells queued: 0 Rx cells: 0, Tx cells: 0 Tx Clp0:0, Tx Clp1: 0 Rx Clp0:0, Rx Clp1: 0 Rx Upc Violations:0, Rx cell drops:0 Rx Clp0 q full drops:0, Rx Clp1 qthresh drops:0 Rx connection-traffic-table-index: 1 Rx service-category: UBR (Unspecified Bit Rate) Rx pcr-clp01: Rx scr-clp01: none Rx mcr-clp01: none Rx cdvt: 1024 (from default for interface) Rx mbs: none Tx connection-traffic-table-index: 1 Tx service-category: UBR (Unspecified Bit Rate) Tx pcr-clp01: Tx scr-clp01: none Tx mcr-clp01: none Tx cdvt: none Tx mbs: none 6-15

16 Configuring Point-to-Multipoint PVP Connections Chapter 6 Configuring Point-to-Multipoint PVP Connections This section describes configuring point-to-multipoint PVP connections. Figure 6-5 provides an example of point-to-multipoint PVP connections. Figure 6-5 Point-to-Multipoint PVP Example IF# = 4/0/0 VPI = 50 IF# = 1/1/1 VPI = 60 IF# = 3/0/0 VPI = 70 ATM network Switch fabric IF# = 3/0/3 VPI = 80 UNI or NNI In Figure 6-5, cells entering the ATM switch router at the root point (the left side at interface ATM 4/0/0), VPI = 50, are duplicated and switched to the leaf points (output interfaces), on the right side of the figure. To configure point-to-multipoint PVP connections, perform the following steps, beginning in global configuration mode: interface atm card-a/subcard-a/port-a Selects the interface to be configured. To configure the point-to-multipoint PVP connections using the atm pvp command, the root point is port A and the leaf points are port B. The row index for rx-cttr and tx-cttr must be configured before using this optional parameter. See the Configuring the Connection Traffic Table section on page Examples The following example shows how to configure the root-point PVP on ATM switch router interface ATM 4/0/0 (VPI = 50), to the leaf point interfaces ATM 1/1/1 (VPI = 60), ATM 3/0/0 (VPI = 70), and ATM 3/0/3 (VPI = 80) (see Figure 6-5): Switch(config)# interface atm 4/0/0 Switch(config-if)# atm pvp 50 cast-type p2mp-root interface atm 1/1/1 60 cast-type p2mp-leaf Switch(config-if)# atm pvp 50 cast-type p2mp-root interface atm 3/0/0 70 cast-type p2mp-leaf Switch(config-if)# atm pvp 50 cast-type p2mp-root interface atm 3/0/3 80 cast-type p2mp-leaf 6-16

17 Chapter 6 Configuring Point-to-Multipoint PVP Connections Displaying Point-to-Multipoint PVP Configuration To display the ATM interface configuration, use the following EXEC command: show atm vp [interface atm card/subcard/port vpi] Shows the ATM VP configuration. Examples The following example shows the PVP configuration of the point-to-multipoint PVP connections on ATM interface 4/0/0: Switch# show atm vp interface atm 4/0/0 Interface VPI Type X-Interface X-VPI Status ATM4/0/0 50 PVP ATM1/1/1 60 UP ATM3/0/0 70 UP ATM3/0/3 80 UP The following example shows the PVP configuration of the point-to-multipoint PVP connections on ATM interface 4/0/0, VPI = 50, with the switch processor feature card installed: Switch# show atm vp interface atm 4/0/0 50 Interface: ATM4/0/0, Type: ds3suni VPI = 50 Status: UP Time-since-last-status-change: 00:01:51 Connection-type: PVP Cast-type: point-to-multipoint-root Usage-Parameter-Control (UPC): pass Wrr weight: 2 Number of OAM-configured connections: 0 OAM-configuration: disabled OAM-states: Not-applicable Cross-connect-interface: ATM1/1/1, Type: oc3suni Cross-connect-VPI = 60 Cross-connect-UPC: pass Cross-connect OAM-configuration: disabled Cross-connect OAM-state: Not-applicable Cross-connect-interface: ATM3/0/0 Cross-connect-VPI = 70 Cross-connect-interface: ATM3/0/3 Cross-connect-VPI = 80 Threshold Group: 5, Cells queued: 0 Rx cells: 0, Tx cells: 0 Tx Clp0:0, Tx Clp1: 0 Rx Clp0:0, Rx Clp1: 0 Rx Upc Violations:0, Rx cell drops:0 Rx Clp0 q full drops:0, Rx Clp1 qthresh drops:0 Rx connection-traffic-table-index: 1 Rx service-category: UBR (Unspecified Bit Rate) Rx pcr-clp01: Rx scr-clp01: none Rx mcr-clp01: none Rx cdvt: 1024 (from default for interface) Rx mbs: none 6-17

18 Configuring Soft PVC Connections Chapter 6 Tx connection-traffic-table-index: 1 Tx service-category: UBR (Unspecified Bit Rate) Tx pcr-clp01: Tx scr-clp01: none Tx mcr-clp01: none Tx cdvt: none Tx mbs: none Configuring Soft PVC Connections This section describes configuring soft permanent virtual channel (PVC) connections, which provide the following features: Connection to another host or ATM switch router that supports signalling Configuration of PVCs without the manual configuration steps described in the Configuring Virtual Channel Connections section on page 6-2 Configuration of PVCs with the reroute or retry capabilities when a failure occurs in the network Figure 6-6 illustrates the soft PVC connections used in the following examples. Figure 6-6 Soft PCV Connection Example User A Switch B Switch C User D ATM network IF# = 0/0/2 VPI = 0, VCI = 1000 IF# = 1/1/1 VPI = 0, VCI = 1000 Address = e0.4fac.b c Guidelines for Creating Soft PVCs Perform the following steps when you configure soft PVCs: Step 1 Step 2 Step 3 Step 4 Step 5 Determine which two ports you want to define as participants in the soft PVC. Decide which of these two ports you want to designate as the destination (or passive) side of the soft PVC. This decision is arbitrary it makes no difference which port you define as the destination end of the circuit. Retrieve the ATM address of the destination end of the soft PVC using the show atm address command. Retrieve the VPI/VCI values for the circuit using the show atm vc command. Configure the source (active) end of the soft PVC. At the same time, complete the soft PVC setup using the information derived from Step 3 and Step 4. Be sure to select an unused VPI/VCI value (one that does not appear in the show atm vc display). 6-18

19 Chapter 6 Configuring Soft PVC Connections Configuring Soft PVCs To configure a soft PVC connection, perform the following steps, beginning in privileged EXEC mode: Step 1 Switch# show atm addresses Determines the destination ATM address. Step 2 Step 3 Step 4 Switch# configure terminal Switch(config)# Switch(config)# interface atm card/subcard/port[.vpt#] Switch(config-if)# Switch(config-if)# atm soft-vc source-vpi source-vci dest-address atm-address dest-vpi dest-vci [enable disable] [upc upc] [pd pd] [rx-cttr index] [tx-cttr index] [retry-interval [first interval] [maximum interval]] [redo-explicit [explicit-path precedence {name path-name identifier path-id} [upto partial-entry-index]] [only-explicit]] At the privileged EXEC prompt, enters configuration mode from the terminal. Selects the interface to be configured. Configures the soft PVC connection. The row index for rx-cttr and tx-cttr must be configured before using this optional parameter. See the Configuring the Connection Traffic Table section on page Examples The following example shows the destination ATM address of the interface connected to User D: Switch-C# show atm addresses Switch Address(es): B0A2A B0A2A81.00 active E04FACB401.00E04FACB Soft VC Address(es): <Information deleted> e0.4fac.b c ATM1/1/ e0.4fac.b c ATM1/1/ e0.4fac.b c ATM1/1/2 <Information deleted> The following example shows how to configure a soft PVC on Switch B between interface ATM 0/0/2, source VPI = 0, VCI = 1000; and Switch C, destination VPI = 0, VCI = 1000 with a specified ATM address (see Figure 6-6): Switch-B(config)# interface atm 0/0/2 Switch-B(config-if)# atm soft-vc dest-address e0.4fac.b c

20 Configuring Soft PVC Connections Chapter 6 Displaying Soft PVC Configuration To display the soft PVC configuration at either end of a ATM switch router, use the following EXEC commands: show atm vc interface atm card/subcard/port show atm vc interface atm card/subcard/port vpi vci Shows the VCs configured on the ATM interface. Shows the soft PVC interface configuration. Examples The following example shows the soft PVC configuration of Switch B, on interface ATM 0/0/2 out to the ATM network: Switch-B# show atm vc interface atm 0/0/2 Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status ATM0/0/2 0 5 PVC ATM QSAAL UP ATM0/0/ PVC ATM ILMI UP ATM0/0/ PVC ATM PNNI UP ATM0/0/ PVC ATM NCDP UP ATM0/0/ SVC ATM0/0/ UP ATM0/0/ SoftVC ATM0/0/ UP The following example shows the soft PVC configuration of Switch C, on interface ATM 1/1/1 out to the ATM network: Switch-C# show atm vc interface atm 1/1/1 Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status ATM1/1/1 0 5 PVC ATM2/0/ QSAAL UP ATM1/1/ PVC ATM2/0/ ILMI UP ATM1/1/ PVC ATM2/0/ PNNI UP ATM1/1/ PVC ATM2/0/ NCDP UP ATM1/1/ SVC ATM1/1/ UP ATM1/1/ SoftVC ATM1/1/ UP ATM1/1/ PVC ATM2/0/ SNAP UP 6-20

21 Chapter 6 Configuring Soft PVC Connections The following example shows the soft PVC configuration of Switch B, on interface ATM 0/0/2 (VPI = 0, VCI = 1000) out to the ATM network with the switch processor feature card installed: Switch-B# show atm vc interface atm 0/0/ Interface: ATM0/0/2, Type: oc3suni VPI = 0 VCI = 1000 Status: UP Time-since-last-status-change: 21:56:48 Connection-type: SoftVC Cast-type: point-to-point Soft vc location: Source Remote ATM address: b0a.2a c Remote VPI: 0 Remote VCI: 1000 Soft vc call state: Active Number of soft vc re-try attempts: 0 First-retry-interval: 5000 milliseconds Maximum-retry-interval: milliseconds Aggregate admin weight: TIME STAMPS: Current Slot:2 Outgoing Setup May 25 10:38: Incoming Connect May 25 10:38: Packet-discard-option: disabled Usage-Parameter-Control (UPC): pass Wrr weight: 2 Number of OAM-configured connections: 0 OAM-configuration: disabled OAM-states: Not-applicable Cross-connect-interface: ATM0/0/2, Type: oc3suni Cross-connect-VPI = 0 Cross-connect-VCI = 35 Cross-connect-UPC: pass Cross-connect OAM-configuration: disabled Cross-connect OAM-state: Not-applicable Threshold Group: 5, Cells queued: 0 Rx cells: 0, Tx cells: 0 Tx Clp0:0, Tx Clp1: 0 Rx Clp0:0, Rx Clp1: 0 Rx Upc Violations:0, Rx cell drops:0 Rx Clp0 q full drops:0, Rx Clp1 qthresh drops:0 Rx connection-traffic-table-index: 1 Rx service-category: UBR (Unspecified Bit Rate) Rx pcr-clp01: Rx scr-clp01: none Rx mcr-clp01: none Rx cdvt: 1024 (from default for interface) Rx mbs: none Tx connection-traffic-table-index: 1 Tx service-category: UBR (Unspecified Bit Rate) Tx pcr-clp01: Tx scr-clp01: none Tx mcr-clp01: none Tx cdvt: none Tx mbs: none 6-21

22 Configuring Soft PVP Connections Chapter 6 Configuring Soft PVP Connections This section describes configuring soft permanent virtual path (PVP) connections, which provide the following features: Connection to another host or ATM switch router that does supports signalling Configuration of PVPs without the manual configuration steps described in the Configuring Virtual Channel Connections section on page 6-2. Configuration of PVPs with the reroute or retry capabilities when a failure occurs within the network Figure 6-7 is an illustration of the soft PVP connections used in the examples in this section. Figure 6-7 Soft PVP Connection Example User A Switch B Switch C User D ATM network IF# = 0/0/2 VPI = 75 IF# = 1/1/1 VPI = 75 Address = b0a.2a c To configure a soft PVP connection, perform the following steps, beginning in global configuration mode: Step 1 Step 2 Switch(config)# interface atm card/subcard/port Switch(config-if)# Switch(config-if)# atm soft-vp source-vpi dest-address atm-address dest-vpi [enable disable] [upc upc] [rx-cttr index] [tx-cttr index] [retry-interval [first interval] [maximum interval]] [redo-explicit [explicit-path precedence {name path-name identifier path-id} [upto partial-entry-index]] [only-explicit]] Selects the interface to be configured. Configures the soft PVP connection. The row index for rx-cttr and tx-cttr must be configured before using this optional parameter. See the Configuring the Connection Traffic Table section on page Example The following example shows how to configure a soft PVP on Switch B between interface ATM 0/0/2, source VPI = 75; and Switch C, destination VPI = 75, with a specified ATM address (see Figure 6-7): Switch-B(config)# interface atm 0/0/2 Switch-B(config-if)# atm soft-vp 75 dest-address b0a.2a c

23 Chapter 6 Configuring Soft PVP Connections Displaying Soft PVP Connections To display the ATM soft PVP configuration, use the following EXEC command: show atm vp [interface atm card/subcard/port vpi] Shows the soft PVP configuration. Examples The following example shows the soft PVP configuration at Switch B, on interface ATM 0/0/2 out to the ATM network: Switch-B# show atm vp Interface VPI Type X-Interface X-VPI Status ATM0/0/2 1 SVP ATM0/0/2 75 UP ATM0/0/2 75 SoftVP ATM0/0/2 1 UP The following example shows the soft PVP configuration on interface ATM 1/1/1 at Switch C out to the ATM network: Switch-C# show atm vp Interface VPI Type X-Interface X-VPI Status ATM1/1/1 1 SVP ATM1/1/1 75 UP ATM1/1/1 75 SoftVP ATM1/1/1 1 UP The following example shows the soft PVP configuration at Switch B on interface ATM 0/0/2 (VPI = 75) out to the ATM network with the switch processor feature card installed: Switch-B# show atm vp interface atm 0/0/2 75 Interface: ATM0/0/2, Type: oc3suni VPI = 75 Status: UP Time-since-last-status-change: 00:09:46 Connection-type: SoftVP Cast-type: point-to-point Soft vp location: Source Remote ATM address: b0a.2a c Remote VPI: 75 Soft vp call state: Active Number of soft vp re-try attempts: 0 First-retry-interval: 5000 milliseconds Maximum-retry-interval: milliseconds Aggregate admin weight: TIME STAMPS: Current Slot:2 Outgoing Setup May 26 09:45: Incoming Connect May 26 09:45: <information deleted> 6-23

24 Configuring the Soft PVP or Soft PVC Route Optimization Feature Chapter 6 Configuring the Soft PVP or Soft PVC Route Optimization Feature This section describes the soft PVP or soft PVC route optimization feature. Most soft PVPs or soft PVCs have a much longer lifetime than SVCs. The route chosen during the soft connection setup remains the same even though the network topology might change. Soft connections, with the route optimization percentage threshold set, provide the following features: When a better route is available, soft PVPs or PVCs are dynamically rerouted Route optimization can be triggered manually Soft PVC route optimization should not be configured with constant bit rate (CBR) connections. Route optimization is directly related to administrative weight, which is similar to hop count. For a description of administrative weight, see the Configuring the Global Administrative Weight Mode section on page Configuring soft PVP or soft PVC route optimization is described in the following sections: Enabling Soft PVP or Soft PVC Route Optimization on page 6-24 Configuring a Soft PVP/PVC Interface with Route Optimization on page 6-24 For overview information about the route optimization feature refer to the Guide to ATM Technology. Enabling Soft PVP or Soft PVC Route Optimization Soft PVP or soft PVC route optimization must be enabled and a threshold level configured to determine the point when a better route is identified and the old route is reconfigured. To enable and configure route optimization, use the following global configuration command: atm route-optimization percentage-threshold percent Configures route optimization. Example The following example enables route optimization and sets the threshold percentage to 85 percent: Switch(config)# atm route-optimization percentage-threshold 85 Configuring a Soft PVP/PVC Interface with Route Optimization Soft PVP or soft PVC route optimization must be enabled and configured to determine the point at which a better route is found and the old route is reconfigured. 6-24

25 Chapter 6 Configuring the Soft PVP or Soft PVC Route Optimization Feature To enable and configure a soft PVC/PVP interface with route optimization, perform the following steps, beginning in global configuration mode: Step 1 Step 2 Switch(config)# interface [atm card/subcard/port serial card/subcard/port:cgn] Switch(config-if)# Switch(config-if)# atm route-optimization soft-connection [interval minutes] [time-of-day {anytime start-time end-time}] Selects the interface to configure. Enter the interface number of the source end of the soft PVC/PVP. Route optimization works for the source end of a soft PVC/PVP only and is ignored if configured on the destination interface. Configures the interface for route optimization. Example The following example shows how to configure an interface with a route optimization interval configured as every 30 minutes between the hours of 6:00 P.M. and 5:00 A.M.: Switch(config)# interface atm 0/0/0 Switch(config-if)# atm route-optimization soft-connection interval 30 time-of-day 18:00 5:00 Displaying an Interface Route Optimization Configuration To display the interface route optimization configuration, use the following EXEC command: show atm interface [atm card/subcard/port serial card/subcard/port:cgn] Shows the interface configuration route optimization configuration. Example The following example shows the route optimization configuration of ATM interface 0/0/0: Switch# show atm interface atm 0/0/0 IF Status: UP Admin Status: up Auto-config: enabled AutoCfgState: completed IF-Side: Network IF-type: NNI Uni-type: not applicable Uni-version: not applicable Max-VPI-bits: 8 Max-VCI-bits: 14 Max-VP: 255 Max-VC: ConfMaxSvpcVpi: 255 CurrMaxSvpcVpi: 255 ConfMaxSvccVpi: 255 CurrMaxSvccVpi: 255 ConfMinSvccVci: 35 CurrMinSvccVci: 35 Svc Upc Intent: pass Signalling: Enabled Soft vc route optimization is enabled Soft vc route optimization interval = 30 minutes Soft vc route optimization time-of-day range = (18:0-5:0) ATM Address for Soft VC: e0.4fac.b c <information deleted> 6-25

26 Configuring Soft PVCs with Explicit Paths Chapter 6 Configuring Soft PVCs with Explicit Paths Normally, soft PVCs and soft PVPs are automatically routed by PNNI over paths that meet the traffic parameter objectives. However, for cases where manually configured paths are needed, PNNI explicit paths can optionally be specified for routing the soft PVC or soft PVP. For detailed information on configuring PNNI explicit paths, refer to the Configuring Explicit Paths section on page The explicit paths are assigned using precedence numbers 1 through 3. The precedence 1 path is tried first and if it fails the soft connection is routed using the precedence 2 path and so forth. If all of the explicit paths fail, standard on-demand PNNI routing is tried unless the only-explicit keyword is specified. If the soft connection destination address is reachable at one of the included entries in an explicit path, any following entries in that path are automatically disregarded. This allows longer paths to be reused for closer destinations. Alternatively, the upto keyword can be specified for an explicit path in order to disregard later path entries. Example The following example shows how to configure a soft PVC between ATM switch router dallas_1 and an address on ATM switch router new_york_3 using either of the two explicit paths new_york.path1 and new_york.path2. If both explicit paths fail, the ATM switch router uses PNNI on-demand routing to calculate the route. dallas_1(config)# interface atm 0/0/0 dallas_1(config)# atm soft-vc dest-address e7b.2f c explicit-path 1 name new_york.path1 explicit-path 2 name new_york.path2 Changing Explicit Paths for an Existing Soft PVC Example Explicit paths can be added, modified or removed without tearing down existing soft PVCs by using the redo-explicit keyword. Only the source VPI and VCI options need to be specified. All applicable explicit path options are replaced by the respecified explicit path options. The soft PVC is not immediately rerouted using the new explicit path. However, reroutes using the new explicit path can happen for the following four reasons: 1. A failure occurs along the current path. 2. The EXEC command atm route-optimization soft-connection is entered for the soft PVC. 3. route-optimization is enabled and the retry time interval has expired. 4. The soft PVC is disabled and then reenabled using the disable and enable keywords. The following example shows how to change the explicit path configuration for an existing soft PVC on the ATM switch router dallas_1 without tearing down the connection. The new configuration specifies the two explicit paths, new_york.path3 and new_york.path4, and uses the only-explicit option. dallas_1(config)# interface atm 0/0/0 dallas_1(config)# atm soft-vc redo-explicit explicit-path 1 name new_york.path3 explicit-path 2 name new_york.path4 only-explicit 6-26

27 Chapter 6 Configuring Soft PVCs with Explicit Paths The configuration displayed for soft connections with explicit paths is always shown as two separate lines using the redo-explicit keyword on the second line, even if it is originally configured using a single command line. Displaying Explicit Path for Soft PVC Connections To display a soft PVC connection successfully routed over an explicit path, use the following EXEC command: show atm vc interface atm card/subcard/port vpi vci Displays the soft PVC connection status including the PNNI explicit path routing status for the last setup attempt. Example The following example shows the last explicit path status for a soft PVC using the show atm vc interface EXEC command. that the first listed explicit path new_york.path2 shows an unreachable result, but the second explicit path new_york.path1 succeeded. Switch# show atm vc interface atm 0/1/ VPI = 0 VCI = 40 Status:UP Time-since-last-status-change:00:00:03 Connection-type:SoftVC Cast-type:point-to-point Soft vc location:source Remote ATM address: b.d c Remote VPI:0 Remote VCI:40 Soft vc call state:active Number of soft vc re-try attempts:0 First-retry-interval:5000 milliseconds Maximum-retry-interval:60000 milliseconds Aggregate admin weight:15120 TIME STAMPS: Current Slot:4 Outgoing Release February 26 17:02: Incoming Rel comp February 26 17:02: Outgoing Setup February 26 17:02: Incoming Connect February 26 17:02: Outgoing Setup February 23 11:54: Incoming Release February 23 11:54: Outgoing Setup February 23 11:54: Incoming Release February 23 11:54: Outgoing Setup February 23 11:55: Incoming Connect February 23 11:55: Explicit-path 1:result=6 PNNI_DEST_UNREACHABLE (new_york.path2) Explicit-path 2:result=1 PNNI_SUCCESS (new_york.path1) Only-explicit Packet-discard-option:disabled Usage-Parameter-Control (UPC):pass Number of OAM-configured connections:0 OAM-configuration:disabled 6-27

28 Configuring Nondefault Well-Known PVCs Chapter 6 OAM-states: Not-applicable Cross-connect-interface:ATM0/0/3.4, Type:oc3suni Cross-connect-VPI = 4 Cross-connect-VCI = 35 Cross-connect-UPC:pass Cross-connect OAM-configuration:disabled Cross-connect OAM-state: Not-applicable Rx cells:0, Tx cells:0 Rx connection-traffic-table-index:1 Rx service-category:ubr (Unspecified Bit Rate) Rx pcr-clp01: Rx scr-clp01:none Rx mcr-clp01:none Rx cdvt:1024 (from default for interface) Rx mbs:none Tx connection-traffic-table-index:1 Tx service-category:ubr (Unspecified Bit Rate) Tx pcr-clp01: Tx scr-clp01:none Tx mcr-clp01:none Tx cdvt:none Tx mbs:none Configuring Nondefault Well-Known PVCs Normally the default well-known VCs are automatically created with default virtual channel identifiers (VCIs). However, for the unusual instances where the ATM switch router interfaces with nonstandard equipment, you can configure nondefault well-known VCI values on a per-interface basis. For overview information about the well-known PVCs, refer to the Guide to ATM Technology. Table 6-2 lists the default well-known VCs and their default configuration. Table 6-2 Well-Known Virtual Channels Channel Type Virtual Path Identifier Virtual Channel Identifier Signalling 0 5 ILMI 0 16 PNNI 0 18 Tag switching 0 32 Caution Do not change the well-known channels to use a VC where the remote end is sending AAL5 messages not intended for the well-known VC. For example, do not swap VC values between two types of well-known VCs. 6-28

29 Chapter 6 Configuring Nondefault Well-Known PVCs Overview of Nondefault PVC Configuration Following is an overview of the steps needed to configure nondefault well-known VCs: Step 1 Step 2 Step 3 Step 4 Enable manual well-known VC configuration. Delete any existing automatically created well-known VCs. Configure the individual encapsulation type as follows: Signalling (QSAAL) ILMI PNNI Tag switching Copy the running-configuration file to the startup-configuration file. Configuring Nondefault PVCs To configure the nondefault PVCs for signalling, ILMI, and PNNI, perform the following steps, beginning in global configuration mode: Step 1 Step 2 Step 3 Step 4 Step 5 Switch(config)# interface atm card/subcard/port Switch(config-if)# Switch(config-if)# atm manual-well-known-vc {keep delete} Switch(config-if)#atm pvc vpi vci [rx-cttr index] [tx-cttr index] interface atm card/subcard/port any-vci [encap {ilmi pnni qsaal}] or Switch(config-if)# tag-switching atm control-vc vpi vci Switch(config-if)# end Switch# Switch# copy system:running-config nvram:startup-config Selects the interface to be configured. Enters manual-well-known-vc mode. Configures the nondefault PVC for encapsulation type. Returns to privileged EXEC mode. Copies the running configuration file to the startup configuration file. An error condition occurs if either the signalling or ILMI well-known VCs remain unconfigured when an interface is enabled. 6-29

30 Configuring a VPI/VCI Range for SVPs and SVCs Chapter 6 Example The following example shows the nondefault VC configuration steps: Step 1 Use the show atm vc interface atm command to display the configuration of the existing default well-known VCs for ATM interface 0/0/0. Step 2 Change to interface configuration mode for ATM interface 0/0/0. Step 3 Enter manual well-known-vc mode and delete the existing default well-known VCs using the atm manual-well-known-vc delete command. Step 4 Confirm deletion by entering y. Step 5 Step 6 Step 7 Configure the nondefault VC for signalling from 5 (the default) to 35 using the atm pvc command. Configure the ILMI VC, then configure the PNNI VC if needed using the same procedure. Save the new running configuration to the startup configuration. An example of this procedure follows: Switch# show atm vc interface atm 0/0/0 Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status ATM0/0/0 0 5 PVC ATM QSAAL UP ATM0/0/ PVC ATM ILMI UP ATM0/0/ PVC ATM PNNI UP Switch# Switch# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)# interface atm 0/0/0 Switch(config-if)# atm manual-well-known-vc delete Okay to delete well-known VCs for this interface? [no]: y Switch(config-if)# atm pvc 1 35 interface atm0 any-vci encap qsaal Switch(config-if)# end Switch# %SYS-5-CONFIG_I: Configured from console by console Switch# show atm vc interface atm 0/0/0 Interface VPI VCI Type X-Interface X-VPI X-VCI Encap Status ATM0/0/ PVC ATM QSAAL UP Switch# copy system:running-config nvram:startup-config Building configuration... [OK] Configuring a VPI/VCI Range for SVPs and SVCs You can configure a virtual path identifier/virtual channel identifier (VPI/VCI) range for switched virtual channels and switched virtual paths (SVCs and SVPs). ILMI uses the specified range to negotiate the VPI/VCI range parameters with peers. This feature allows you to: Specify ranges for SVPs/SVCs. Avoid VPI/VCI conflicts when attempting to set up soft PVPs or soft PVCs. You can still configure PVPs and PVCs in any supported range, including any VPI/VCI range you configured for SVPs/SVCs. 6-30